DATA REQUIRED Electric motor power/motor size Manufacturer and pump type

Transcription

1 A guide to select the correct bell-housing and drive coupling components DATA REQUIRED Electric motor power/motor size Manufacturer and pump type TO VERIFY: 1 - Pump and motor shaft dimensions (see page 67) 2 - Shaft and flange pump (see pump data sheet) Example: - Electric motor 2 kw - 4 poles - Motor size 110/112 - Atos pump code PFE31 - Shaft 1 Electric motor s dimension Pump s dimensions ,76 19,05 Nr. 2x ,5 9,5 Ø 82,55 Ø 106,4 Bell-Housing's length calculation H= ,5 = 135,5 mm (18= Sp spider - see page 49) Choose type of bell-housing (LMC - LMS) - For LMC see tab. 3 at page 11 - For LMS see tab. 22 at page 32 - For MODUL 2/3 see at page 36 Note: The length of bell-housing must be than the length calculated (135,5 mm) Case A - solution with LMC bell-housing Tab. 3 at page 11 - for electric motor 2 kw LMC 250 LMC 250 bell-housing with height 135,5 - LMC250AFSQ The bell-housing code must be completed with drilling pump code (see tab. 35 at page 47) For the specific case C= 82,5 - Nr. 2 holes M10: Code drilling 060 Definitive bell-housing code LMC250AFSQ060 Case B - solution with LMS bell-housing Tab. 22 at page 32 - for electric motor 2 kw LMS 250 LMS 250 bell-housing with heigh 135,5 - LMS250AFSQ The bell-housing code must be completed with drilling pump code (see tab. 35 at page 47) For the specific case C= 82,5 - Nr. 2 holes M10: Code for. 060 Definitive bell-housing code LMS250AFSQ060 2

2 Choose coupling Motor half-coupling (see tab. 38 at page 50) - For electric motor Gr. 100/112, the half-coupling is SGEA21M05060 Spider (see tab at page 49) - For SGEA21, EGE2 - EGE2RR (choose spider material on the base of the application, oil, temperature and cycle machine, etc.) Pump half-coupling - Choose the drilling code tab at page 53 for shaft 19,05 - Ch. 4,76 - code: G01 - Half-coupling length = L BH lenght THK Spider THK Spigot LMC= 138 mm ,5= 50,5 mm LMS= 148 mm ,5= 60,5 mm - LMC - Choose the half-coupling s length on tab. 39 at page 50 50,5 mm. - LMS - Choose the half-coupling s length on tab. 39 at page 50 60,5 mm. - LMC - Availabe length for SGEA21= 50 mm - LMS - Availabe length for SGEA21= 60 mm - LMC=LMS - Code half-coupling code: SGEA21G01050 Software for automatic calculation available on the web site - tools - software Note: For multi pumps we recommend to use a specific support on the base of the pump s dimensions and weight. 3

3 Half-coupling SGE*** series The half-couplings series SGE*** allow secure transmission between the electric motor and the driven side; they are able to absorb shocks and vibration, in addition to compensating radial misalignment, angular and axial. The assembly of the couplings can be horizontal/vertical, withstanding vibration and load reversals. The complete range of couplings are extrapolated from the on-line software, with a length equal than the shaft on which must be mounted and they are completed with grub screw for fixing located on the key. Available for cilindrical shaft with metric and imperial dimensions as well for splined shafts as per specification DIN, ISO and SAE. Admissible misalignment radial, angular and axial Max admissible radial misalignment Max admissible angular misalignment Max admissible angular misalignment Half coupling R (mm) Half coupling b ( ) Half coupling A (mm) SGE * 01 0,5 SGE * 01 SGE * 01 2,0 SGE * 21 1,0 SGE * 21 SGE * 21 2,5 SGE * 31 1,0 SGE * 31 SGE * 31 3,0 SGE * 40 SGE * 51 1,0 1,5 SGE * 40 SGE * 51 1,5 SGE * 40 SGE * 51 3,5 3,5 SGE * 60 1,5 SGE * 60 SGE * 60 3,5 SGE * 80 2,0 SGE * 80 SGE * 80 4,0 SGE * 90 2,0 SGE * 90 SGE * 90 5,0 Normative ATEX 94/9/CE Half-couplings SGE*** series are available to use in hazardous area. The couplings are certified according to ATEX 94/9/CE (ATEX 95). Category certified 2G - area 1 and 2. Other information available on our web site MP Filtri couplings are developed with: CAD 3D FEM (calculation) Drawings 3D available on website at section TOOLS/2D-3D COMPONENTS 4

4 Sizing of half-coupling The half-couplings SGE*** series are in conformity to normative DIN 740/2. The max torque to transmit is always less than the max torque that the coupling can transmit. Examples verification of the coupling Torque transmitted by electric motor: Mt: Me > 9560 x kw / rpm = Nm Mt x S = Nm Where: Mt: Torque transmitted by electric motor Me: Torque transmitted by coupling (see table 14) kw: Rpm: Power of electric motor Revolutions per minute of electric motor S: Service factor (see table 14) TABLE 1 Small pumps, uniform load, low operating pressures e.g. rotary action machine tools - 5/8 work cycles per hour Small pumps, uniform load, high working pressures e.g. lifting equipment work cycles per hour Pumps, non-uniform load e.g. lifting equipment work cycles per hour Example Electric motor, 4 pole - 4 kw hydraulic pump, uniform load, low operating pressure Mt: Me > 9560 x 4 / 1500 = Nm x 1.3 = 33 Nm Half-coupling SGEA21 meets the above requirement. Select the half-coupling of the calculated size from the motor half-couplings table. Note: When selecting the coupling, remember that for pumps with splined shaft, only cast iron couplings of the SGEG series can be used. Determine the size of the coupling according to the type of installation and application envisaged, on the basis of the following formulas and tables: TABLE 2 Half-coupling type External diameter Nominal torque Maximum transmissible torque mm Me - Nm Me - Nm ALUMINIUM SGEA SGEA SGEA SGEA51 109, CAST IRON SGEG SGEG SGEG SGEG SGEG SGEG STEEL SGES SGES SGES Nominal and maximum torque values are referred to couplings assembled with standard flexible spiders of the EGE** series (see page 49). Where higher torques are to be transmitted, use flexible spiders of the EGE**RR series (see page 49). 5

5 Noise Noise is a particularly pervasive problem so much so that there have been statutory regulations in place now for some years, designed to limit harmful occupational exposure. Many of the machines used in industry today are equipped with oil-hydraulic systems, which happen to be a major source of noise. 1. Theory and definition of noise From a health and hygiene standpoint, noise can be defined as an unpleasant and undesirable sound, or an unpleasant and annoying or intolerable auditory sensation (noise being any sound phenomena that may be accompanied by sensations of disturbance and pain). By definition, acoustic phenomena are oscillatory in character, propagated in a flexible medium and causing pressure variations at the points, and the areas adjacent to those points, through which they pass. 2. Sound Technically considered, certain elements must be present simultaneously for acoustic phenomena to occur: Sound source Transmission medium Receiver Motor and pump unit Bell-housing Electric motor Pump RECEIVER - Human ear - Sound level meter The electric motor and the pump, together with the drive coupling, are the SOURCE OF THE NOISE. The Bell-housing is the noise transmission medium. Depending on whether the monobloc bell-housing is a rigid or low noise type, there will be variations in the flexible properties of the transmission medium. The acoustic phenomena are dissimilar in the two cases, given the differences in pressure variation and particle displacement. 6

6 Assembly of motor and pump unit As mentioned in the presentation, low noise bell-housing will help to attenuate the transmission of vibrations and the emission of noise generated by the system. Self-evidently, however, the mere adoption of a low noise bell-housing will achieve little unless the motor and pump are correctly installed on the machine, or on the tank of the hydralic power unit. Should be followed in order to achieve best possible results and correct installation: 1.Motor and pump unit mounted horizontally on oil tank lid 2. Motor and pump unit mounted horizontally on machine The suction pipe attached to the pump must be rigid, and fitted using a resilient bulkhead flange of the FTA series, which helps to cushion the vibrations propagated between the pipe and the tank lid. If pipes need to be bent, the radius of curvature must be at least 3 times the pipe diameter. Do not use elbow fittings, as these will significantly increase pressure losses. As a matter of good practice, the oil tank and motor-pump unit should be mounted on a single supporting frame of strength sufficient to support the load. If the hydraulic system is fitted with a side-mounted filter, the suction pipeline to the pump must be flexible, and long enough to include bends with the minimum radius of curvature recommended by the manufacturer. The pressure pipeline of the pump must be flexible, and long enough to include bends with the minimum radius of curvature recommended by the manufacturer for the specified operating pressure. The return pipeline running from the service to the filter must be flexible. Where oil is returned directly to the tank of the hydraulic power unit through a rigid pipe, it is advisable to use a resilient bulkhead flange of the FTR series, which helps to cushion the vibrations propagated between the pipe and the tank lid. Anti-vibration devices (resilient mounts or damping rods) must be located under the feet of the electric motor or the PDM foot brackets, depending on the mounting position of the motor. The lids of hydraulic oil tanks must be sturdy enough to support the load they carry. If the suction filter is not side mounted, the pipeline should be rigid and installed in conjunction with a compensating coupling. The pressure pipeline of the pump must be flexible, and long enough to include bends with the minimum radius of curvature recommended by the manufacturer for the specified operating pressure. The return pipeline running from the service to the filter must be flexible. Where oil is returned directly to the tank of the hydraulic power unit through a rigid pipe, it is advisable to use a resilient bulkhead flange of the FTR series, which helps to cushion the vibrations propagated between the pipe and the tank lid. Anti-vibration devices (resilient mounts or damping rods) must be located under the feet of the electric motor or the PDM foot brackets, depending on the mounting position of the motor. Note: The above guidelines are indicative only, and subordinate to the solutions adopted ultimately by design engineers. In conclusion: For best results, in any event, the motor-and-pump unit should be incorporated into the hydraulic system in such a way that no one component is rigidly associated with another, resulting in the propagation of vibration, and consequently noise. 7

7 Table of summary MODUL 2/3 D. 350 D. 550 D

8 Modular bell-housing components MODUL 2/3 Modular bell-housing components are used to connect UNEL-MEC electric motors with B3 - B5 flanges to piston, vane and screw type hydraulic pumps. The advantage of modular design is that a wide range of motor and pump combinations can be covered with relatively few components. This means that dealers can simplify their inventory while still being able to service the majority of applications envisaged. The strength of these components will also guarantee top reliability, even in the toughest of applications. Suitable for electric motors from size 132, rated 5.5 kw, up to size 400, rated 400 kw. Technical specifications MODUL 2/3 Materials Base module Pressure diecast aluminium alloy. Pump flange Alluminium alloy. Intermediate adapter Alluminium alloy. Foot bracket Pressure diecast aluminium alloy. Gaskets Special paper (Guarnital). Temperature -30 C +80 C For temperatures outside this range, contact the MP Filtri Technical and Sales Department. Compatibility with fluids Modular bell-housing components compatible for use with: Mineral oils Types HH-LL-HM-HR-HV-HC, to ISO 6743/4 standard Water based emulsions Types HFAE HFAS, to ISO 6743/4 standard Water glycol Type HFC, to ISO 6743/4 standard Ask for anodized version Special Applications Any applications not covered by the normal indications contained in this catalogue must be evaluated and approved by the MP Filtri Technical and Sales Department. 36

9 Mounting components KVG*** fastening kit Base module Adapter Pump flange BMT*** AD*** FR/FP*** 1 Clean the gasket seating surfaces 2 Locate the base module gasket in the relative recess and position the adapter 3 Secure with the bolts of the kit 4 Locate the pump flange gasket in the relative recess, then offer the flange to the adapter 5 Secure with the bolts of the kit Note: Secure the screws of the fastening kit as indicated in the following table Recommended tightening torques for assembly of components. KVG1 KVG5 KVG6 KVG7 M8 M14 M16 M20 15 Nm 135 Nm 205 Nm 400 Nm These values are calculated to exploit the performance of the bolt at 70% of its elastic limit. This means in practice that the shank of the bolt will be stressed typically to 60-70% of its limit of elasticity in the course of being tightened. The values indicated are valid for hexagon head bolts to UNI 5737 and hexagon socket screws to UNI 5931, property class 8.8, tightened by degrees using a torque wrench. If bolts or screws are tightened using impact or hammer action drivers, the figure indicated should be reduced by 10%. 37

10 Motor base D3 D2 D1 F8 D4 H7 D5 Nr. 4xF Nr. 4xP H2 TABLE 24 - MODUL 3 Motor 4-pole 1500 rpm Frame size kw Hp Shaft x x x x x140 Dimensions of motor base Foot bracket Weight Code code D1 D2 D3 D4 D5 H2 F. Nr. P Nr. (kg) BMT300A0805 PDM A M ,95 BMT350A1105 PDM A M ,10 BMT350A1105 PDM A M ,90 BMT400A1106 / M ,90 BMT450A1406 / M16 8 / / 5,00 For dimension see page 55 D3 D2 D1 F8 D4 h7 D5 h7 D6 Nr. 16xF H2 TABLE 25 - MODUL 2 Motor 4-pole 1500 rpm Frame size kw Hp Shaft x x x x x210 Dimensions of motor base Foot bracket Weight Code code D1 D2 D3 D4 D5 D6 H2 F. Nr. P Nr. (kg) BMT550A21567 / M16 16 / / 8,40 BMT550A21567 / M16 16 / / 8,40 BMT660A25067 / M20 16 / / 12,00 BAD800A2707 / / M20 8 / / 31,00 BAD800A2707 / / M20 8 / / 31,00 Not available 38

11 Intermediate adapter 240 h7 190 H7 TABLE Application with Application with Code Fastening kit Fastening kit Weight Motor base Pump Flange Adapter Motor base Pump Flange (kg) BMT400A1106 BMT450A1406 FP6 *** *** AD60465 KVG6 KVG5 1,30 D1 h7 D2 h7 TABLE 27 Application with Application with Code Fastening kit Fastening kit Weight Motor base Pump Flange Adapter Motor base Pump Flange D1 D2 (kg) BMT300A0805 BMT350A1105 BMT400A1106 BMT450A1406 FP5 *** *** AD50385 KVG5 KVG ,00 FP6 *** *** AD60466 KVG6 KVG ,60 D1 h7 D2 h7 TABLE 28 Application with Application with Code Fastening kit Fastening kit Weight Motor base Pump Flange Adapter Motor base Pump Flange D1 D2 (kg) BMT300A0805 BMT350A1105 BMT300A0805 BMT350A1105 BMT400A1106 BMT450A1406 FP5 *** *** AD50386 KVG5 KVG ,25 FP5 *** *** AD50467 KVG5 KVG ,90 FP6 *** *** AD60467 KVG6 KVG ,50 39

12 Pump flange D1 H7 D2 TABLE 29 Flange Assembly Code D1 D2 kit Possible pump interfaces FR1023*** 23 S024 S025 D042 S061 S063 S083 S023 S070 S071 S072 S075 S125 S154 FR1025*** 25 S021 S026 S068 S069 S080 S082 S115 S237 FR1033*** 33 S021 S023 S026 S027 S070 S071 S072 S074 S080 S082 F KVG1 FR1035*** 35 S060 S063 S065 FR1040*** 40 S098 S227 FR1079*** 79 S031 S116 Weight (kg) 0,25 0,30 0,80 0,90 1,10 1,30 TABLE 30 Code Flange D1 D2 Assembly kit Possible pump interfaces Weight (kg) FP5026*** 26 S023-S024-S025-S033-D042-S063-S070-S072-S075-S154-S254 1,00 FP5032*** 32 S024-S031-S158-S096-S125 1,10 FP5035*** 35 S021-S023-S024-S025-S026-S031-S059-S060-S068-S072-S074-S075-S083-S097-S106-S125-S131-S138 0,90 FP5045*** 45 FP5056*** KVG5 S021-S024-S025-S026-S060-S068-S070-S071-S072-S074-S075-S106-S125-S141 S021-S026-S072 0,90 1,61 FP5063*** 63 S021-S025-S068-S070-S079-S138-S141 1,70 FP5064*** 64 S024-S025-S059-S093-S099-S100-S104 1,70 FP5091*** 91 S025-S031-S033-S100-S113-S115-S116-S267 2,20 FP6032*** 32 S021-S035-S081-S082 1,80 FP6045*** 45 S021-S025-S026-S027-S069-S070-S075-S077-S080-S081-S082-S125-S198-S207-S215-S253 2,10 FP6058*** 58 S024-S025-S026-S027-S038-S077-S078-S079-S080-S081-S082-S207-S215-S237 2,40 FP6070*** 70 FP6082*** KVG6 S080-S270 S038-S080-S081-S116-S141-S198-S215 3,00 3,30 FP6086*** 86 S021-S026-S027-S077-S078-S090-S092-S166-S091-S114-S132-S198-S200 3,40 FP6101*** 101 S027-S035-S113-S115-S132-S148-S176-S228 4,20 FP6110*** 110 S080-S111 5,50 FP7052*** 52 S028-S092-S108-S112-S133-S192 4,10 FP7066*** 66 S090-S092-S166 4,75 FP7069*** 69 FP7086*** KVG7 S108-S143-S148-S158-S192-S19-S201-S204-S281-S282-S288 S022-S027-S028-S091-S092-S108-S112-S117-S166-S184-S192-S201-S228-S300 4,90 5,20 FP7111*** 111 S028-S091-S112-S117-S144-S145-S184 6,30 Complete the order designation with the pump interface code: Ex. FP5026S023 40

13 Monobloc bell-housing for NEMA motors Monobloc bell-housings for NEMA motors are standard products of the LMC series used normally for electric motors manufactured to European standards. These bell-housings must be used in combination with specific ADNEMA 143 TD and ADNEMA 254 TD adapters. For dimensions and clearances of adapter rings see page 45 BCD D Monobloc bell-housing D3 D2 D1 D4 D5 Nr. 4xP Nr. 4xF H2 The auxiliary flange, if specified, is supplied already fitted to the bell-housing (MODUL-2). Check that the pump interface dimensions are compatible with those of the bell-housing Note: The hole made in the tank cover should be 2 mm larger than dimension D5 Machining tolerances D1 Centraggio F8 H7 ± 0,15 mm Concentricità D1/ LMC 300 0,20 mm TABLE31 Dimensions of LMC monobloc bell-housing Bell-housing Foot bracket code code D1 D2 D3 D4 D5 H2 F P LMC 300AFST*** PDM A M12 14 LMC 300AFSX*** PDM A M12 14 For dimension see page 55 41

14 Base module for NEMA motors BMC series motors base are derived from standard LMC monobloc bell-housings and used as base elements to which FR/FP5/FP6 series auxiliary flanges can be fixed so as to increase the height of the bell housing or allow the attachment of a pump, which would not be possible using a monobloc bell housing. Motors base can be used for the installation of NEMA motors in conjunction with specific ADNEMA 143 TD and ADNEMA 254 TD adapters. For dimensions and clearances of adapter rings, see page H2 Nr. 4xF D5 D3 D2 D1 F8 D4 H7 TABLE 32 Dimensions of BMC motor base Motor base Foot bracket Weight code code D1 D2 D3 D4 D5 H2 F (kg) BMC300A1551 PDM A M8 3,30 BMC300A1701 PDM A M8 3,30 BMC300A1555 PDM A M14 3,30 BMC300A1705 PDM A M14 3,30 For dimension see page 55 For pump flange codes, see page 17 42

15 Low noise bell-housing for NEMA motors Low noise bell-housings for NEMA motors are standard products of the LMS series used normally for electric motors manufactured to European standards. These bell-housings must be used in combination with specific ADNEMA 143 TD and ADNEMA 254 TD adapters. For dimensions and clearances of adapter rings, see page 45. BCD Base module D D3 D2 D1 P F H2 The auxiliary flange, if specified, is supplied already fitted to the bell-housing. N.B. In order to ensure coaxial alignment between the motor and pump spigot centres, the bell-housing cannot be disassembled and reassembled. TABLE 33 Machining tolerances D1 F8 H7 ± 0,15 mm Concentricity of D1/ LMS 300 0,20 mm Dimensions of LMS low noise bell-housing Bell-housing Foot bracket code code D1 D2 D3 H2 F P LMS 300AFSC*** PDM A M12 14 LMS 300AFSD*** PDM A M12 14 For dimension see page 55 43

16 Motor base for NEMA motors - Flange TD Motors base for NEMA motors are standard products of the BMT series used normally for electric motors manufactured to European standards, which are machined in such a way as to provide the necessary interface for the NEMA motor. Motors base are utilized in conjunction with standard pump flanges of the FP series. For the dimensions of flanges, see page 17. Motor base for NEMA motors: 404TD - 405TD - 444TD - 445TD - 447TD - 449TD D3 D2 D1 F8 D4 h7 D5 h7 D6 Nr. 16xF H2 TABLE 34 - MODUL 2 Dimensions of Motor base Weight Code D1 D2 D3 D4 D5 H2 F. Nr. (kg) BMT450NEMA324TD 355,6 406, ,00 BMT550NAMA404TD 457, ,40 44

17 Adapters for NEMA motors - Flange TD Adapter for NEMA motors NEMA: Cod. ADNEMA143TD 143TD - 145TD - 180TD - 182TD - 184TD - 210TD - 213TD - 215TD Da montare su lanterne LMC - BMC - LMS - BMT 300 Ø 298,5 Ø 228,6 H7 Ø 254 Ø , Ø 230 h7 M12 20 Adapter for NEMA motors NEMA: 256TD - 284TD - 286TD Cod. ADNEMA254TD Ø 348,5 Ø 279,35 H7 Ø 230 h7 Ø 265 Ø 317,5 13,5 M

18 LMC series steel bell-housings These bell-housings made of welded steel are available for electric motors rated from 0.5 up to 1000 kw, responding to UNEL-MEC (European) and to NEMA (US) standards. The dimensions can be customized to suit the type of motor-pump combination, or to meet particular customer specifications. Standard finishes: - Zinc-treated, white - Oil-resistant primer, black Custom treatments or paint finishes can be applied on request. 46

19 Pump inter face codes Valid configuration for bell-housing up to Ø 400 Valid configuration for bell-housing from Ø 450 to Ø 660 D D D D 22,5 22,5 22,5 22,5 BCD BCD BCD BCD Bell-housing with nr. 2 holes at pump interface, aligned with through holes at motor interface Bell-housing with nr. 4 holes at pump interface, aligned with thread holes at motor interface Bell-housing with nr. 2 holes at pump interface + 22,5 compared to through holes at motor interface Bell-housing with nr. 4 holes at pump interface + 22,5 compared to thread holes at motor interface TABLE 35 - Drilling pump code to be insert in the box nr. 4 of page 13 (LMC*A) and page 35 (LMS*A) mm BCD D N holes Code mm BCD D N holes Code mm BCD D N holes Code M M M M ,9 M M ,2 71,8 M M ,4 M M M M M ,2 60 M M Ø Ø M , M M M M ,50 M M M ,8 125 Ø M / / / / 125 Ø / / / / 190 Ø ,6 M M Ø ,6 M M ,6 M ,15 106,4 Ø M ,5 Ø ,4 146 M ,6 M M M ,6 M ,5 M M ,5 M M M M M ,7 157,2 M ,5 M Ø M M M M ,6 224 M M M M M M M M M Ø8, M M M M M M M M M ,35 M M ,35 M M ,1 145 M M Ø ,35 M M M ,8 88,9 M M M M M M M ,8 216 M M M ,2 M M Ø M M M M M M M M Ø M M M M ,4 M Ø M M M Ø Ø8, M M M M ,5 M M Ø M M ,2 110 M ,2 M M M M ,4 M Ø M Ø M ,55 106,4 M Ø M ,5 M M ,2 M M ,5 M M ,4 M Ø M M M Ø M ,2 M Ø M Ø M / rev